Hi R_Crane,

You can create a partial refund within the QuickBooks Payments platform, so you won't need to enter your customer's credit card information. Here's how:

1. Sign in to your QuickBooks Payments account.
2. From the Activity & Reports drop-down, select Transactions.
3. Enter the appropriate date range, then Search.
4. Select the Transaction ID or the transaction you want to reverse.
5. Select Reverse (Void/Credit).
6. Type in the amount you want to refund, then click Submit.
7. A receipt of the transaction will display on the screen. Select E-mail or Print to get a copy of the receipt.

You can also check out this article for your additional reference: Understand fees for refunds or void transactions.

Feel free to go back to this thread if you have other questions in mind.